主权项 |
1. A method for converting radar signal into a number of meteorological products such as reflectivity, velocity, rainfall estimate, copolar differential phase and/or velocity moments, comprising:
providing an input signal that represents the radar echoes received from a number of measurement volumes, for each measurement volume, deriving a number of candidate signals, which comprise the original Doppler data vector received from that measurement volume and a number of filtered versions of the original Doppler data vector; each of the said filtered versions being results of filtering performed either in the time domain or in the spectral domain, or any combination thereof, selecting from said candidate signals the one that best matches a set of predetermined criteria or rejecting the said candidate signals as not fulfilling the criteria, with criteria comprising of characteristics of a precipitation-originated signal and/or sand or dust-originated signal and/or biological scatter-originated signal and/or an additional set of criteria with known characteristics, and deriving and outputting a number of said meteorological products for that measurement volume from the selected candidate signal, if the said candidate signal exists. |